/*
 * Copyright (c) 2020 - Manifold Systems LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package manifold.ext.rt;

import java.lang.annotation.Retention;
import java.lang.annotation.Target;


import static java.lang.annotation.ElementType.METHOD;
import static java.lang.annotation.RetentionPolicy.RUNTIME;

/**
 * !!! For internal use only !!!
 * <p/>
 * This annotation is added to a generated extension method when it is added to the extended class.
 * It serves as a means to efficiently identify an extension method during method call analysis.
 * This annotation is never applied to code on disk.
 */
@Target({METHOD})
@Retention(RUNTIME)
public @interface ExtensionMethod
{
  String extensionClass = "extensionClass";
  String extensionClass();

  String isStatic = "isStatic";
  boolean isStatic();

  String isSmartStatic = "isSmartStatic";
  boolean isSmartStatic();

  /**
   * True if the method is intercepted, and it body needs to be rewritten. See {@link manifold.ext.rt.api.Intercept}
   */
  String isIntercept = "isIntercept";
  boolean isIntercept();

  /**
   * True if the origin of the method is from an (unannotated) class. See {@link manifold.ext.rt.api.ExtensionSource}
   */
  String isExtensionSource = "isExtensionSource";
  boolean isExtensionSource();
}
